Traceback (most recent call last):
  File "electrum\gui\qt\main_window.py", line 2314, in do_import_labels
  File "electrum\gui\qt\util.py", line 1329, in import_meta_gui
  File "electrum\wallet.py", line 585, in import_labels
  File "electrum\wallet.py", line 570, in set_label
AttributeError: 'int' object has no attribute 'replace'